Re: Issue 211: DtlsTransport.getLocalParameters and certificate creation

Originally opened by Robin Raymond:
https://github.com/openpeer/ortc/issues/211

Robin said:

"If a certificate is created when DtlsTransport.getLocalParameters is called or when the object is constructed, then it is possible that getLocalParameters would not be able to return immediately. This can be addressed either by making getLocalParameters() a Promise, or via the certificate management API."

Would this work for Section 4.3 and 4.3.2?

4.3 Interface Definition



Partial interface RTCDtlsTransport : RTCStatsProvider {

    Promise<RTCDtlsParameters> getLocalParameters ();

};


4.3.2 Methods
getLocalParameters
Obtain the DTLS parameters of the local RTCDtlsTransport asynchronously. When the getLocalParameters() method is invoked, the user agent must queue a task to run the following steps:
1.   Let p be a new promise.
2.   Check whether RTCDtlsTransport.state is "closed"; if so, reject p with an InvalidStateError.
3.   Return, but continue the following steps in the background.
4.   Start gathering the local parameters.
5.   When the local parameters have been gathered, return a new RTCDtlsParameters object.
No parameters.
Return type: Promise<RTCDtlsParameters<http://internaut.com:8080/~baboba/ortc/ortc-5-21-2015.html#idl-def-RTCDtlsParameters>>